You're washing your face before bed, and there they are—roads and rivers across your hands and forearms that you swear weren't there this morning. Veins that suddenly look like they're ready to audition for a medical textbook.
It's startling. Maybe even a little concerning. Is this normal? Is my circulation failing? Am I dehydrated? Is something wrong?
Take a breath. For the vast majority of people, prominent veins at night are completely normal. Your body isn't sounding an alarm—it's just being a body.
But understanding why this happens can transform worry into simple awareness. And sometimes, just sometimes, those visible veins are worth mentioning to a doctor. Let's talk about both.
The Main Reasons Veins Become More Visible at Night
1. Natural Body Temperature Fluctuations
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